2011/4/8 NeilBrown <neilb@xxxxxxx>:
>
> Maybe the best thing to do at this point is post the output of
> mdadm -E /dev/sd[bcdef]1
> and I'll see if I can make sense of it.
Thanks for your advice! here is the output:
/dev/sdb1:
Magic : a92b4efc
Version : 00.90.00
UUID : 07ca9dc0:8d91f663:fe51d0ea:fe5e38c2
Creation Time : Mon Jun 8 20:38:29 2009
Raid Level : raid5
Used Dev Size : 1465135872 (1397.26 GiB 1500.30 GB)
Array Size : 5860543488 (5589.05 GiB 6001.20 GB)
Raid Devices : 5
Total Devices : 5
Preferred Minor : 0
Update Time : Thu Apr 7 20:49:01 2011
State : clean
Active Devices : 3
Working Devices : 3
Failed Devices : 1
Spare Devices : 0
Checksum : 2a930ff9 - correct
Events : 1885746
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 3 8 17 3 active sync /dev/sdb1
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 8 65 2 active sync /dev/sde1
3 3 8 17 3 active sync /dev/sdb1
4 4 8 81 4 active sync /dev/sdf1
/dev/sdc1:
Magic : a92b4efc
Version : 00.90.00
UUID : 07ca9dc0:8d91f663:fe51d0ea:fe5e38c2
Creation Time : Mon Jun 8 20:38:29 2009
Raid Level : raid5
Used Dev Size : 1465135872 (1397.26 GiB 1500.30 GB)
Array Size : 5860543488 (5589.05 GiB 6001.20 GB)
Raid Devices : 5
Total Devices : 5
Preferred Minor : 0
Update Time : Thu Apr 7 20:48:31 2011
State : clean
Active Devices : 3
Working Devices : 4
Failed Devices : 1
Spare Devices : 1
Checksum : 2a930fe8 - correct
Events : 1885744
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 6 8 33 6 spare /dev/sdc1
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 8 65 2 active sync /dev/sde1
3 3 8 17 3 active sync /dev/sdb1
4 4 8 81 4 active sync /dev/sdf1
5 5 8 49 5 faulty /dev/sdd1
/dev/sdd1:
Magic : a92b4efc
Version : 00.90.00
UUID : 07ca9dc0:8d91f663:fe51d0ea:fe5e38c2
Creation Time : Mon Jun 8 20:38:29 2009
Raid Level : raid5
Used Dev Size : 1465135872 (1397.26 GiB 1500.30 GB)
Array Size : 5860543488 (5589.05 GiB 6001.20 GB)
Raid Devices : 5
Total Devices : 5
Preferred Minor : 0
Update Time : Thu Apr 7 20:45:10 2011
State : clean
Active Devices : 4
Working Devices : 5
Failed Devices : 1
Spare Devices : 1
Checksum : 2a930f0c - correct
Events : 1885736
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 0 8 49 0 active sync /dev/sdd1
0 0 8 49 0 active sync /dev/sdd1
1 1 0 0 1 faulty removed
2 2 8 65 2 active sync /dev/sde1
3 3 8 17 3 active sync /dev/sdb1
4 4 8 81 4 active sync /dev/sdf1
5 5 8 33 5 spare /dev/sdc1
/dev/sde1:
Magic : a92b4efc
Version : 00.90.00
UUID : 07ca9dc0:8d91f663:fe51d0ea:fe5e38c2
Creation Time : Mon Jun 8 20:38:29 2009
Raid Level : raid5
Used Dev Size : 1465135872 (1397.26 GiB 1500.30 GB)
Array Size : 5860543488 (5589.05 GiB 6001.20 GB)
Raid Devices : 5
Total Devices : 5
Preferred Minor : 0
Update Time : Thu Apr 7 20:49:01 2011
State : clean
Active Devices : 3
Working Devices : 3
Failed Devices : 1
Spare Devices : 0
Checksum : 2a931027 - correct
Events : 1885746
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 2 8 65 2 active sync /dev/sde1
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 8 65 2 active sync /dev/sde1
3 3 8 17 3 active sync /dev/sdb1
4 4 8 81 4 active sync /dev/sdf1
/dev/sdf1:
Magic : a92b4efc
Version : 00.90.00
UUID : 07ca9dc0:8d91f663:fe51d0ea:fe5e38c2
Creation Time : Mon Jun 8 20:38:29 2009
Raid Level : raid5
Used Dev Size : 1465135872 (1397.26 GiB 1500.30 GB)
Array Size : 5860543488 (5589.05 GiB 6001.20 GB)
Raid Devices : 5
Total Devices : 5
Preferred Minor : 0
Update Time : Thu Apr 7 20:49:01 2011
State : clean
Active Devices : 3
Working Devices : 3
Failed Devices : 1
Spare Devices : 0
Checksum : 2a93103b - correct
Events : 1885746
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 4 8 81 4 active sync /dev/sdf1
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 8 65 2 active sync /dev/sde1
3 3 8 17 3 active sync /dev/sdb1
4 4 8 81 4 active sync /dev/sdf1
~$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5]
[raid4] [raid10]
md0 : inactive sdf1[4](S) sdd1[0](S) sde1[2](S) sdb1[3](S) sdc1[6](S)
7325679680 blocks
unused devices: <none>
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